From: Ryan McGreevy (
Date: Mon May 20 2019 - 08:36:26 CDT

You can use the volutil trim commands to remove both halves of the map one
at a time by trimming half of the gridsize in whatever axis you want. Also
note that in the latest VMD 1.9.4 releases, there is a new `voltool`
command which will replace volutil going forward.

On Sun, May 19, 2019 at 4:43 AM xiaoyu qing <>

> Dear VMD users,
> I would like use volutil to divide a density map into two equal parts,
> what's the command?
> Thanks a lot in advance,
> xiaoyu